AR Device Remeasurement Indications for Survey Data Quality
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Solution Overview
Problem
In metrology, geodesy, and civil engineering, the complexity of information and growing data volumes pose challenges to clarity and comprehensibility, making it difficult for users to efficiently and accurately perform surveying tasks using existing Augmented Reality (AR) systems, which struggle to provide clear and purposeful visualizations of survey data.
Innovation Solution
An AR-device equipped with a visual sensor, display, and computer that captures and overlays AR-data spatially linked to a reference system, utilizing Visual Simultaneous Localisation and Mapping (VSLAM) processes and remeasurement indications to identify and address areas with substandard data quality, guiding users on necessary re-measurements through remeasurement instructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If comprehensive survey data and AR-visualisations are provided to users, then information completeness is improved, but clarity and comprehensibility deteriorate due to growing data volumes and information complexity
Solution Approach 1:
The patent segments survey data into different quality categories (good quality, insufficient quality, unsatisfactory quality) and displays them separately using distinct visual indicators. This segmentation allows users to comprehensively view all survey data while maintaining clarity by organizing information into manageable, quality-based groups rather than presenting raw unprocessed data volumes.
Solution Approach 2:
The patent applies local quality by providing specific remeasurement indications only at locations where measured data lacks target quality, rather than uniformly processing all data points. The system evaluates each measurement location's quality and applies appropriate visual indicators and remeasurement instructions only where needed, reducing overall information complexity while maintaining completeness.
2Measurement precision
If detailed measured data and remeasurement indications are displayed, then measurement precision is improved, but ease of operation deteriorates due to reduced overview capability
Solution Approach 1:
The patent uses color changes and distinct visual indicators to represent different data quality levels and remeasurement requirements. By encoding quality information visually through color-coded markers and indicators, the system maintains measurement precision through detailed quality assessment while preserving ease of operation through intuitive visual overview capability.
Solution Approach 2:
The patent segments remeasurement indications into specific location-based markers that can be quickly scanned and understood. By dividing detailed measurement data into discrete, location-specific indicators with clear visual distinctions, users can maintain overview capability while accessing precise quality information where needed.
3Productivity
If comprehensive surveying information is provided, then productivity is improved through complete data coverage, but loss of time increases due to difficulty in regaining overview
Solution Approach 1:
The patent performs preliminary action by automatically evaluating measurement quality and generating remeasurement indications before users need to review the data. The system pre-processes survey data, identifies quality issues, and prepares visual indicators in advance, so users receive comprehensive information ready for immediate review without needing to manually analyze raw data, thus reducing time to regain overview.
Solution Approach 2:
The patent applies local quality by focusing remeasurement indications only on specific locations requiring attention rather than presenting all data uniformly. This allows users to quickly identify and address critical issues first, improving productivity by prioritizing tasks while maintaining complete data coverage for comprehensive surveying.
Data Source
AI summary
An Augmented Reality (AR)-device, including a visual sensor configured for capturing an environment of the AR device, a display configured for providing a real view of the environment, and overlays onto the real view according to AR-data, wherein the AR data are spatially linked to a reference system and comprise designed data, measured data, and remeasurement indications, a computer configured for reading and controlling the visual sensor, determining a pose of the AR-device relative to the reference system, at least one of receiving, generating and storing the AR-data, and generating the overlays. The remeasurement indications are based on an evaluation of the measured data, and spatially linked to the reference system at corresponding locations of the environment where the measured data lack a target quality.